Hierarchical Window Database Query Execution
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United States of America Patent
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Jan 18, 2018
app pub date -
Dec 6, 2016
filing date -
Jul 18, 2016
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Addressed herein is the problem of expressing and evaluating computations on hierarchies represented as database tables. Engine support for such computations is very limited today, and so they are usually outsourced into stored procedures or client code. Structural grouping is applied to relational algebra to provide concise syntax to express a class of useful computations. Algorithms are also provided to evaluate such structural groupings efficiently by exploiting available indexing schemes. Related apparatus, systems, techniques and articles are also described.
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